NTN technical review 

Abstract: The industrial developments go more and more into electric devices and even traditional mechanical systems become electrically assisted, such as manual gearboxes, steering systems etc.... So the need for precise and reliable sensor is continuously increasing. At the same time the cost factor becomes more and more important. Since SNR has introduced the ASB ® Technology for wheel speed detection in cars, which became a world standard now, the research efforts in that domain have lead SNR to develop not only magnetic encoders with better magnetic material and higher precision, but also sensing elements in order to implement more functionality in the Sensor Bearings. At the SNR Mechatronics Department in Annecy, France, basic developments and research programs are conducted especially for magnetic sensor devices as these are seen as robust and cost effective solutions, which can work even in harsh environment situations. The performance of the latest sensor development is presented in this paper as well as a short overview of the technology.